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Finding the Fourth Proportional to 684,365.88, 944,431.04 and 378,462.84

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Solution

The fourth proportional to 684,365.88, 944,431.04 and 378,462.84 is: 522,282.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,365.88 : 944,431.04 = 378,462.84 : x
  2. Step 2: Convert to fraction form
    684,365.88/944,431.04 = 378,462.84/x
  3. Step 3: Cross multiply
    684,365.88x = 944,431.04 × 378,462.84
  4. Step 4: Simplify right side
    684,365.88x = 357,432,053,582.55
  5. Step 5: Solve for x
    x = 357,432,053,582.55/684,365.88
  6. Step 6: Final answer
    x = 522,282.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.